<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card >
            <!-- 搜索区域 -->
           <el-row :gutter="20">
               <el-col :span=8>
                    <el-input placeholder="请输入内容"  class="input-with-select" @clear="getUserList" v-model="queryInfo.query" clearable>
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
               </el-col>
               <el-col :span=4><el-button type="primary" @click="addDialogVisible=true">添加用户</el-button></el-col>
           </el-row>
           <!-- 用户列表区域 -->
           <el-table :data="userlist" border stripe>
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column  prop="username" label="姓名"> </el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"> </el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state"  active-color="#13ce66" inactive-color="#ff4949" @change="userStateChange(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180">
                    <template slot-scope="scope">
                        <el-button icon="el-icon-edit" type="primary" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button icon="el-icon-delete" type="danger"  size="mini" @click="deleteUserId(scope.row.id)"></el-button>
                        <el-tooltip effect="light" content="分配角色" placement="top" :enterable="false">
                            <el-button icon="el-icon-setting" type="warning"  size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
           </el-table>
           <!-- 分页器 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
              <!-- 添加用户的对话框 -->
            <el-dialog
                    title="添加用户"
                    :visible.sync="addDialogVisible"
                    width="50%" @close="addDialogClose">
                    <!-- 内容主体区 -->
                    <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px"> 
                      <el-form-item label="用户名" prop="username">
                            <el-input v-model="addForm.username"></el-input>
                      </el-form-item>
                       <el-form-item label="密码" prop="password">
                            <el-input v-model="addForm.password"></el-input>
                      </el-form-item>
                       <el-form-item label="邮箱" prop="email">
                            <el-input v-model="addForm.email"></el-input>
                      </el-form-item>
                       <el-form-item label="手机" prop="mobile">
                            <el-input v-model="addForm.mobile"></el-input>
                      </el-form-item>
                    </el-form>
                    <span slot="footer" class="dialog-footer">
                        <el-button @click="addDialogVisible = false">取 消</el-button>
                        <el-button type="primary" @click="addUser">确 定</el-button>
                    </span>
            </el-dialog>
            <!-- 修改用户的对话框 -->
            <el-dialog
                title="修改用户"
                :visible.sync="editDialogVisible"
                width="50%" @close="editDialogClosed">
                <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px"> 
                      <el-form-item label="用户名">
                            <el-input v-model="editForm.username" disabled></el-input>
                      </el-form-item>
                       <el-form-item label="邮箱" prop="email">
                            <el-input v-model="editForm.email"></el-input>
                      </el-form-item>
                       <el-form-item label="手机" prop="mobile">
                            <el-input v-model="editForm.mobile"></el-input>
                      </el-form-item>
                    </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 分配角色 -->
            <el-dialog
                title="分配角色 "
                :visible.sync="setRoleDialogVisible"
                width="50%"
                @close="setRoleDialogClose">
                <div>
                    <p>当前用户：{{userInfo.username}}</p>
                    <p>当前角色：{{userInfo.role_name}}</p>
                    <p>分配新角色：
                        <el-select v-model="selectedRoleId" placeholder="请选择">
                            <el-option
                            v-for="item in rolesList"
                            :key="item.id"
                            :label="item.roleName"
                            :value="item.id">
                            </el-option>
                        </el-select>
                    </p>
                </div>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
                </span>
            </el-dialog>
        </el-card>
    </div>
</template>

<script>
export default {
    data(){
        // 验证邮箱的规则
        var checkEmail=(rule,value,cb)=>{
            // 验证邮箱的正则
            const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/;
            if(regEmail.test(value)){
                // 邮箱合法
                return cb()
            }
            cb(new Error('请输入合法邮箱'))
        }
        // 验证手机号的规则
        var checkMobile=(rule,value,cb)=>{
            const regMobile=/^[1][3,4,5,7,8][0-9]{9}$/;
             if(regMobile.test(value)){
                // 邮箱合法
                return cb()
            }
            cb(new Error('请输入正确的手机号'))
        }

        return{
            // 获取用户列表参数对象
            queryInfo:{
                query:'',
                // 当前的页数
                pagenum:1,
                // 当前每页显示多少条数据
                pagesize:2
            },
            // 用户列表信息
            userlist:[],
            total:0,
            // 控制添加用户对话框的显隐
            addDialogVisible:false,
            // 添加用户表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加表单验证规则对象
            addFormRules:{
                username:[
                    {required:true,message:"请输入用户名",trigger:'blur'},
                    {min:3,max:10,message:'用户名长度在3到10之间',trigger:'blur'}
                ],
                password:[
                    {required:true,message:"请输入密码",trigger:'blur'},
                    {min:6,max:15,message:'用户名长度在6到15之间',trigger:'blur'}
                ],
                email:[
                    {required:true,message:"请输入邮箱",trigger:'blur'},
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                    {required:true,message:"请输入手机",trigger:'blur'},
                    { validator: checkMobile, trigger: 'blur' }
                ]
             },
              // 编辑用户对话框的显示与隐藏
              editDialogVisible:false,
            //   查询到的用户信息对象保存
                editForm:{},
            // 修改表单验证规则对象
            editFormRules:{
                 email:[
                    {required:true,message:"请输入邮箱",trigger:'blur'},
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                    {required:true,message:"请输入手机",trigger:'blur'},
                    { validator: checkMobile, trigger: 'blur' }
                ]
            },
            // 定义分配角色对话框的显隐
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:{},
            // 获取所有角色数据列表
            rolesList:[],
            // 已选中的角色id值
            selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data:res}=await this.$http.get('users',{params:this.queryInfo})
            // console.log(res)
            if(res.meta.status!==200) {
                return this.$message.error('获取用户列表失败！')
            }
                this.userlist=res.data.users;
                this.total=res.data.total
        },
        // handleSizeChange监听页码条数改变的事件
        handleSizeChange(newSize){
            // console.log(newSize)
            this.queryInfo.pagesize=newSize
             this.getUserList()
        },
        // 监听页码值改变事件
        handleCurrentChange(newPage){
            // console.log(newPage)
            this.queryInfo.pagenum=newPage
            this.getUserList()
        },
        // 监听添加用户对话框的关闭事件,重置表单
        addDialogClose(){
            this.$refs.addFormRef.resetFields()
        },
        // 监听switch开关的状态，发起修改用户的axios请求
       async userStateChange(userinfo){
            console.log(userinfo)
         const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
         console.log(res)
         if(res.meta.status!==200){
             userinfo.mg_state=!userinfo.mg_state
             return this.$message.error('更新用户状态失败！')
         }
              return this.$message.success('更新用户状态成功！')
        },
        // 表单提交前的预校验，校验成功后发起添加用户请求
        addUser(){
            this.$refs.addFormRef.validate( async valid=>{
                // console.log(valid)
                if(!valid) return
                // 发起表单校验请求
           const {data:res} =  await this.$http.post('users',this.addForm)
           if(res.meta.status!==201)  {
               this.$message.error('添加用户失败')
           }
           this.$message.success('添加用户成功')
           this.addDialogVisible=false
        //    重新获取用户列表数据
            this.getUserList()
            })
        },

        // 点击修改按钮，显示修改用户对话框，并同时传入当前行用户的id
       async showEditDialog(id){
            // console.log(id)
           const {data:res}= await this.$http.get(`users/${id}`)
           if(res.meta.status!==200) {
               return this.$message.error('查询用户信息失败')
           }
        //    查询成功的用户信息保存下来
        this.editForm=res.data
        // 显示编辑对话框
          this.editDialogVisible=true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        // 发起修改用户信息的数据请求
        editUserInfo(){
            this.$refs.editFormRef.validate( async valid=>{
                if(!valid) return this.$message.error('修改用户信息失败')
              const {data:res}=await  this.$http.put('users/'+this.editForm.id,{
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                })
                if(res.meta.status!==200) return this.$message.error('修改用户信息失败')
                this.editDialogVisible=false
                this.$message.success('更新用户信息成功')
                this.getUserList()

            })
        },
        // 根据ID删除对应用户
       async deleteUserId(id){
            console.log(id)
          const comfirmResult= await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
            }).catch(err=>err)
            // 如果用户删除，则返回字符串confirm,如果用户取消删除则返回值为字符串cancle
            // console.log(comfirmResult)
            if(comfirmResult!=='confirm'){
                return this.$message.info('已取消删除')
            }
         const {data:res} = await this.$http.delete('users/'+id)
         console.log(res)
         if(res.meta.status!==200) {
             return this.$message.error('删除用户失败')

         }
         this.$message.success('删除用户成功！')
         this.getUserList()
        },
        // 展示分配角色的对话框
      async setRole(userInfo){
            this.userInfo=userInfo
            // 在展示对话框之前获取所有角色列表
         const {data:res} = await this.$http.get('roles')
         this.rolesList=res.data
         console.log(this.rolesList)
            this.setRoleDialogVisible=true
        },
        // 点击分配角色确定按钮 ，进行角色分配
      async  saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色！')
            }
            const {data:res} = await this.$http.put(`users/${parseInt(this.userInfo.id)}/role`,{
                rid:this.selectedRoleId
            })
            if(res.meta.status!==200){
              return this.$message.error('更新失败')
            }
            this.$message.success('更新角色成功！')
            this.getUserList()
            this.setRoleDialogVisible=false
        
        },

        // 监听分配角色对话框关闭事件
        setRoleDialogClose(){
            this.selectedRoleId='',
            this.userinfo=''
        }
    }
}
</script>
<style lang="less" scoped>

</style>